Add options to make your greenhouse your favorite place to spend time.
Upgrade roof material to PolyCoolite. It is specifically designed to supply plants natural solar needs for photosynthesis. The pearlescent color also makes a great privacy barrier between you and your neighbors. Upgrade cost varies based on width and length of greenhouse.
Gable vent with fan, intake vent, and thermostat. (Electrical outlet required.) Upgrades starting at $440.
Vinyl-coated wire shelf. Light-weight shelf. Add $16 per foot.
Drop door. The door can be dropped into a cut-out in the foundation. Please contact your local contractor to build the foundation. Add $500.